data/rand-many-types/README.md

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# rand-many-types

This directory contains a file `random.arrows` in Arrow IPC stream format with randomly generated values in 20+ columns exercising many different Arrow data types. The Python script `generate.py` that generated the data file is included.

The same data is also included as a file in Arrow IPC file format (`random.arrow`), as a Parquet file (`random.parquet`), and as a DuckDB database file (`random.duckdb`) as the table named `random`. The Python and SQL used to generate these files is included.

To re-generate the data files (for example, if you change `generate.py`),

1. Make sure `duckdb` is in your path and activate a Python environment with the packages in `./requirements.txt`
2. Run `make`